The God Eater was a very popular novel that consisted of four parts. Each part had its own unique storyline and characters. Therefore, choosing the best part to play depended on one's personal interests and preferences. If you like adventure and battle stories, then the first movie of the God Eater, Demon Hunter, might be more suitable. It told the story of a young demon hunter's adventure to save the world. If you like complicated love stories, then God Eater's second movie, Dark Blade, might be more suitable. It was a love story between a young warrior and a mysterious Dark Magician. If you like fantasy elements and magic, then the third book of the God Eater, Tower of God, might be more suitable. It told the story of a young mage who embarked on an adventure in search of the truth. If you like a funny and relaxing plot, then the fourth God Eater, Devil's Kiss, might be more suitable. It was a humorous and light-hearted story about the love between a young man and a female demon. God Eater was a very interesting novel. Every part had its own unique storyline and characters. Which part was the most fun depended on one's personal interests and preferences.